(19)
(11) EP 1 347 324 A3

(12) EUROPEAN PATENT APPLICATION

(88) Date of publication A3:
29.09.2004 Bulletin 2004/40

(43) Date of publication A2:
24.09.2003 Bulletin 2003/39

(21) Application number: 03005371.4

(22) Date of filing: 12.03.2003
(51) International Patent Classification (IPC)7: G02B 6/42, G08C 23/04
(84) Designated Contracting States:
AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IT LI LU MC NL PT RO SE SI SK TR
Designated Extension States:
AL LT LV MK

(30) Priority: 12.03.2002 JP 2002067607

(71) Applicant: Funai Electric Co., Ltd.
Daito-shi, Osaka 574-0013 (JP)

(72) Inventors:
  • Maeda, Osamu
    Daito-shi, Osaka 574-0013 (JP)
  • Morisada, Katsuhiro
    Daito-shi, Osaka 574-0013 (JP)

(74) Representative: Grünecker, Kinkeldey, Stockmair & Schwanhäusser Anwaltssozietät 
Maximilianstrasse 58
80538 München
80538 München (DE)

   


(54) Signal receiver having light guide for guiding light transmitted from remote control


(57) A signal receiver which receives an optical signal from a remote control includes a light guide for guiding a light passing through a front panel window toward a photodetector mounted on a circuit board. The light guide is made of a homogeneous material. A light guiding portion of the light guide extending from an entrance end to an exit end has a substantially circular cross section and is curved gently, not angularly. The exit end is configured to have a concave surface which is coaxial with the axes of both the cross section of the light guiding portion and a light-receptive portion of the photodetector. The exit end is disposed adjacent and opposite to the light-receptive portion.






Search report